CN217814380U - Expansion bolt - Google Patents

Abstract

The utility model relates to an expansion bolts technical field just discloses an expansion bolt, which comprises a bolt, the nut has been cup jointed in the surface activity of bolt, the go-between has been cup jointed in the surface activity of bolt, the expansion pipe has been cup jointed in the surface activity of bolt, the other end fixedly connected with inflation end of bolt, the one end fixedly connected with inflation cover of expansion pipe, the fixed surface of inflation cover is connected with the installation piece, the fixed surface of installation piece is connected with grabs the ground nail, the fixed surface of inflation end is connected with the connecting block, the inside fixedly connected with spliced pole of connecting block, the utility model discloses an extrusion of inflation end to inflation cover makes the inflation cover expand to the outside, drives the installation piece through the inflation cover and grabs the ground nail and removes, will grab the ground nail and extrude into the wall body, improves the frictional force between ground nail and the wall body, has improved the steadiness between wall body and the expansion bolt whole for expansion bolt is more fastened when the installation, is difficult to become flexible.

Description

Expansion bolt

Technical Field

The utility model relates to an expansion bolts technical field, more specifically relates to an expansion bolts.

Background

An expansion bolt is a special screw-thread connector for fixing pipeline branch/hanger/bracket or equipment on wall, floor and column, and when it is used, firstly, a hole with correspondent size is drilled on the fixing body by using impact electric drill (hammer), then the bolt and expansion tube are placed in the hole, and the nut is screwed so as to make the bolt, expansion tube, mounting component and fixing body expand into one body.

When the existing expansion bolt is installed, the situation that the expansion bolt is not fastened can occur, when the expansion bolt is loosened in an installation hole or is fastened insufficiently with the installation hole in a clamping mode, the stability between the expansion bolt and equipment can be reduced, the equipment is easy to fall off from a wall body, and dangerousness is increased.

SUMMERY OF THE UTILITY MODEL

In order to overcome the above-mentioned defects of the prior art, the present invention provides an expansion bolt to solve the problems existing in the above-mentioned background art.

The utility model provides a following technical scheme: an expansion bolt comprises a bolt, wherein a nut is movably sleeved on the surface of the bolt, a connecting ring is movably sleeved on the surface of the bolt, an expansion pipe is movably sleeved on the surface of the bolt, the other end of the bolt is fixedly connected with an expansion end, one end of the expansion pipe is fixedly connected with an expansion cover, the surface of the expansion cover is fixedly connected with an installation block, and the surface of the installation block is fixedly connected with a ground grabbing nail;

further, the fixed surface of inflation end is connected with the connecting block, the inside fixedly connected with spliced pole of connecting block, the spout has been seted up on the surface of expansion pipe, the one end fixedly connected with slider of spliced pole, spacing recess has been seted up to the inboard of spout, the inside swing joint of spacing recess has stop gear.

Further, the installation piece is a plurality of with grab the quantity of ground nail, a plurality of installation piece with grab equal quantity grouping of ground nail symmetric distribution on the surface of inflation cover, and a plurality of installation piece is more firm with grabbing between expansion pipe that ground nail can make and the wall body.

Further, the solid fixed ring of stop gear's bottom fixedly connected with, solid fixed ring's bottom fixedly connected with spring when stop gear receives the extrusion, drives solid fixed ring and removes, to spring generate pressure, causes the spring compression to stop gear who makes gets into the inside of spacing recess.

Furthermore, the inside of expansion pipe and slider is seted up respectively with the spacing hole of spliced pole looks adaptation, the one end of spliced pole run through with the inside of expansion pipe to extend to the inside of slider, can drive the slider and remove in the inside of spout when the expansion end removes through the spliced pole.

Furthermore, the ground grabbing nail is conical, the penetrating power of the ground grabbing nail is increased, and the ground grabbing nail is easier to extrude into a wall body.

Furthermore, the quantity of connecting block, spliced pole, spout and slider is a plurality of, a plurality of connecting block, spliced pole, spout and slider symmetric distribution equivalent group are at the surface of inflation end and expansion pipe, can prescribe a limit to the position of inflation end simultaneously through a plurality of connecting block, spliced pole, spout and slider.

The utility model discloses a technological effect and advantage:

1. the utility model discloses an expansion joint makes the expansion housing expand to the outside to the extrusion of expansion housing, drives the installation piece through the expansion housing and removes with grabbing the ground nail, will grab the ground nail and extrude into the wall body, improves and grabs the frictional force between ground nail and the wall body, has improved the steadiness between wall body and the expansion bolts is whole for expansion bolts fastens more when the installation, is difficult to not hard up.

2. The utility model discloses a spring, solid fixed ring and stop gear restrict the position of slider, prevent that the slider from removing in the inside of spout, restrict the position of inflation end through connecting block, spliced pole, spout and slider, prevent when the nut is not being connected with the bolt taut, thereby the inflation end has lost the repulsion force that comes from the nut and has carried out the removal in the opposite direction, influences expansion bolts's installation.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic structural view of the expansion sleeve of the utility model.

Fig. 3 is a schematic structural view of the connecting column of the present invention.

Fig. 4 is an enlarged schematic view of a portion a of fig. 3 according to the present invention.

Fig. 5 is a schematic structural diagram of the limiting mechanism of the present invention.

The reference signs are: 1. a bolt; 2. a nut; 3. a connecting ring; 4. an expansion tube; 5. an expansion end; 6. an expansion housing; 7. mounting a block; 8. grabbing ground nails; 9. connecting blocks; 10. connecting columns; 11. a chute; 12. a slider; 13. a limiting groove; 14. a spring; 15. a fixing ring; 16. a limiting mechanism.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the drawings of the present invention, and the forms of the structures described in the following embodiments are merely examples, and the present invention is not limited to the structures described in the following embodiments, and all other embodiments obtained by a person skilled in the art without creative efforts belong to the scope of the present invention.

Referring to fig. 1-5, the utility model provides an expansion bolt, which comprises a bolt 1, a nut 2 is sleeved on the surface of the bolt 1, a connecting ring 3 is sleeved on the surface of the bolt 1, an expansion pipe 4 is sleeved on the surface of the bolt 1, the other end of the bolt 1 is fixedly connected with an expansion end 5, one end of the expansion pipe 4 is fixedly connected with an expansion cover 6, the surface of the expansion cover 6 is fixedly connected with an installation block 7, and the surface of the installation block 7 is fixedly connected with a ground grabbing nail 8;

wherein, the fixed surface of expansion end 5 is connected with connecting block 9, and the inside fixedly connected with spliced pole 10 of connecting block 9, spout 11 has been seted up on the surface of expansion pipe 4, and the one end fixedly connected with slider 12 of spliced pole 10, spacing recess 13 has been seted up to the inboard of spout 11, and the inside swing joint of spacing recess 13 has stop gear 16.

Wherein, the quantity of installation piece 7 and grabbing ground nail 8 is a plurality of, and a plurality of installation piece 7 with grab ground nail 8 symmetric distribution equivalent group at the surface of expansion cover 6, through expansion cover 6 with a plurality of installation piece 7 with grab ground nail 8 extrusion in the wall body, increase the steadiness of expansion pipe 4 and wall body, the expansion pipe 4 that makes can not produce not hard up with the wall body.

Wherein, stop gear 16's the solid fixed ring 15 of bottom fixedly connected with, the solid fixed ring 15's bottom fixedly connected with spring 14, when stop gear 16 did not receive the extrusion, spring 14 will stretch to make solid fixed ring 15 and stop gear 16 reset, inside stop gear 16 inserted the bottom of slider 12, restrict the position of slider 12.

Wherein, expansion pipe 4 and slider 12's inside offer respectively with the spacing hole of spliced pole 10 looks adaptation, the one end of spliced pole 10 run through with expansion pipe 4's inside to extend to slider 12's inside, when inflation end 5 removed, drive connecting block 9 and remove, thereby make spliced pole 10 can produce thrust to slider 12, the slider 12 that makes removes in the inside of spout 11.

Wherein, grab ground nail 8's shape and be conical, increased the pressure on grabbing ground nail 8 top, when messenger's grab ground nail 8 receives the extrusion, get into the wall body more easily, form the joint with the wall body.

Wherein, the quantity of connecting block 9, spliced pole 10, spout 11 and slider 12 is a plurality of, and a plurality of connecting block 9, spliced pole 10, spout 11 and slider 12 symmetric distribution equivalent group are at the surface of expansion end 5 and expansion pipe 4, through a plurality of connecting block 9, spliced pole 10, spout 11 and slider 12, prevent when nut 2 is not causing the take-up to bolt 1, expansion end 5 self can remove to influence the installation of expansion bolts.

The utility model discloses a theory of operation: a worker firstly opens a mounting hole in a wall body, then puts a bolt 1, an expansion pipe 4 and an expansion end 5 into the hole, then sleeves a nut 2 on the surface of the bolt 1 and rotates the nut 2, at the moment, the expansion end 5 can move towards the inside of the expansion pipe 4 due to the matching between the bolt 1 and the nut 2, the expansion end 5 moves towards the inside of the expansion pipe 4 and can extrude an expansion cover 6, so that the expansion cover 6 can deflect and expand towards the outside and is in contact with the wall body, the mounting block 7 and a ground grabbing nail 8 can be driven to move in the expansion process of the expansion cover 6, the ground grabbing nail 8 can be clamped into the inside of the wall body, the friction force between the ground grabbing nail 8 and the wall body is increased, and the overall stability of the expansion bolt can be enhanced; when expansion end 5 when to the inside motion of expansion pipe 4, the inside spliced pole 10 of connecting block 9 forms thrust to slider 12, make slider 12 remove in the inside of spout 11, when slider 12 removes in the inside of spout 11, can cause the extrusion to stop gear 16, receive the extrusion back when stop gear 16, thereby stop gear 16 that spring 14 will shrink messenger gets into the inside of spacing recess 13, do not lead to the fact the hindrance to the removal of slider 12, when slider 12 removes to stop gear 16's top, spring 14 will stretch, make stop gear 16 reset, insert the inside of slider 12, thereby restrict slider 12's position.

The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;

secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are referred to, and other structures can refer to the common design, and under the condition of no conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

and finally: the above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (7)

1. An expansion bolt comprising a bolt (1), characterized in that: nut (2) have been cup jointed in the surface activity of bolt (1), go-between (3) have been cup jointed in the surface activity of bolt (1), expansion pipe (4) have been cup jointed in the surface activity of bolt (1), the other end fixedly connected with inflation end (5) of bolt (1), the one end fixedly connected with expansion housing (6) of expansion pipe (4), the fixed surface of expansion housing (6) is connected with installation piece (7), the fixed surface of installation piece (7) is connected with grabs ground nail (8).

2. An expansion bolt according to claim 1, wherein: the expansion joint is characterized in that the surface of the expansion end (5) is fixedly connected with a connecting block (9), the inner part of the connecting block (9) is fixedly connected with a connecting column (10), the surface of the expansion pipe (4) is provided with a sliding groove (11), one end of the connecting column (10) is fixedly connected with a sliding block (12), the inner side of the sliding groove (11) is provided with a limiting groove (13), and the inner part of the limiting groove (13) is movably connected with a limiting mechanism (16).

3. An expansion bolt according to claim 1, wherein: the number of installation piece (7) and grab ground nail (8) is a plurality of, a plurality of installation piece (7) and grab ground nail (8) symmetric distribution equivalent group at the surface of expansion cover (6).

4. An expansion bolt according to claim 2, wherein: the bottom fixedly connected with of stop gear (16) is fixed ring (15), the bottom fixedly connected with spring (14) of fixed ring (15).

5. An expansion bolt according to claim 2, wherein: the expansion pipe is characterized in that limiting holes matched with the connecting columns (10) are formed in the expansion pipe (4) and the sliding block (12) respectively, and one ends of the connecting columns (10) penetrate through the expansion pipe (4) and extend to the inside of the sliding block (12).

6. An expansion bolt according to claim 1, wherein: the ground grabbing nail (8) is conical in shape.

7. An expansion bolt according to claim 2, wherein: the quantity of connecting block (9), spliced pole (10), spout (11) and slider (12) is a plurality of, a plurality of connecting block (9), spliced pole (10), spout (11) and slider (12) symmetric distribution equivalent group is on the surface of inflation end (5) and expansion pipe (4).

Images